• Korean Journal of Agricultural Science
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• v.47 no.3
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• pp.533-544
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• 2020

In this paper, we conducted a dynamic ex-post assessment on the grape business cessation support System. Based on the analysis results, in the short term, there was an increase in grape price due to a decrease in production and accompanying increases in the prices of consumption substitution items. However, in the long run, grape prices fell again due to an increase in grape production because of the entry of new grape farmers and the growth of adult grape trees. In addition, the analysis showed that the balloon effect caused by the conversion of crops caused indirect damage such as an increase in the production volume of substitution crops and a decrease in prices. When analyzing the social welfare measurement, the results showed that the support system for business cessation increased the overall social welfare due to an increase in producer welfare because of a price increase in the short term, but in the long term, both producer and consumer welfare decreased. In the end, it is necessary to review the system because the government's intervention may cause market distortion and inefficient resource allocation. Above all, it is necessary to minimize the indirect effect of the industry's contraction and balloon effect due to excessive business cessation. For this, conditional support should be provided in parallel with post management rather than unconditional support. In addition, it is necessary to provide a strategic support system that considers substitution items in addition to those items to be supported.

• The Korean Journal of Pain
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• v.31 no.3
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• pp.206-214
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• 2018

Background: Immune responses appear to be affected by anesthetics and analgesics. We investigated the effects of caudal tramadol on the postoperative immune response and pain management in pediatric patients. Methods: Sixty ASA-I pediatric patients aged 3-10 years undergoing lower abdominal surgery. Patients were randomly assigned either to a caudal bupivacaine (0.25%) group (group B), or a group that received caudal tramadol (1 mg/kg) added to the bupivacaine (0.25%) (group T). Both were diluted in a 0.9% NaCl solution to a total volume of 1ml/ kg. The systemic immune response was measured by collecting blood samples preoperatively, at the end of anesthesia, and at 24 and 72 hours postoperatively, and studied for interleukin IL-6, C-reactive proteins (CRP) cortisol levels, and leucocytes with its differential count. Postoperative pain was assessed along with sedation scales. Results: Postoperative production of IL-6 was significantly higher in group B at the end of anesthesia, than at the $24^{th}$ hour, and at the $72^{nd}$ hour in group B and group T, respectively. The immune response showed leukocytosis with increased percentages of neutrophil and monocytes, and a decreased lymphocyte response rate within both groups with no significant differences between the groups. Cortisol and CRP were significantly higher in group B. Conclusions: Adding tramadol to a caudal bupivacaine block can attenuate the pro-inflammatory cytokine response, Cortisol, and CRP in children undergoing lower abdominal surgery.

• Journal of Nutrition and Health
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• v.39 no.7
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• pp.641-648
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• 2006

This study was designed to evaluate the effect of the individual nutrition education for type 2 diabetes who participate the diabetes buffet. The subjects were 66 patients and divided into education (n=34) and control groups (n=32). The mean age of education and control groups were 59.8 and 56.6 years old, respectively. There were no differences in age and body mass index (BMI) between two groups. Initial glycosylated hemoglobin (HbA1c), post prandial plasma glucose (PP2), total plasma cholesterol, and blood pressure were not different between two groups. But fasting blood sugar (FBS) was higher in education group than in control group. On completion of the study, the education group showed significant decreases in body weight, BMI, FBS and PP2, however, the control group showed no changes in body weight, BMI and PP2, and showed a significant increase in FBS. Initial calorie and protein intakes of the education group did not meet the prescribed amount, however, mineral and vitamin intakes were higher than estimated average requirement (EAR). By the end of study, calorie and protein intakes were significantly increased to meet the prescription. In order to evaluate the effect of diet education, awareness of calorie requirement was used as an index of understanding diet prescription. The degree of awareness of calorie requirement was dependent on age: younger patients showed higher awareness than older subjects. The subject who showed better understanding of diet prescription showed lower levels of HbA1c, FBS, and PP2 at the end of the experiment period. The results of this study clearly show that individual diabetes diet education is effective to make the patient understand their diet prescription, and is effective to control body weight and blood sugar level. Awareness of calorie requirement could be used as an index of understanding of prescribed diet. Since age is an important variable to determine the awareness of calorie requirement, different strategies of nutrition education should be developed for different age groups, especially patients over 70 years old.

• Korean Journal of Social Welfare
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• v.44
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• pp.318-345
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• 2001

The purpose of this research was to develop and evaluate a preventive mental health program for the depression among the elderly in community. Based on the review of literature, intervention program for preventing depression among the elderly was developed. In particular, the program focuses on enhancing the sense of control which is from social cognitive theory. The preventive mental health program consists of two parts: Tan-Hak and Social intervention program. Tan-Hak was oriented to cognitive change and activities, while social intervention program dealt with some social skills for relationship, stress management, motivation of social activities (volunteer activities), positive future designing, etc. For the evaluation of this program, we employed depression scale and medical measurement such as hormone test before and after the program, and in-depth interview of subjects. Overall, this program was successful in some points. First, through the pre and post test, this program has positive effect on strengthening the sense of control, and consequently, lowering depression level. Secondly, 18 people started this program called "smile class" at first time, and none of them turned out until the end of the program. This implies that the program was interesting to the elderly.

• Journal of the military operations research society of Korea
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• v.33 no.1
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• pp.43-58
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• 2007

With every Yasukuni Shrine visit by a Japanese Prime Minister, one can expect that the Korean government will jump up and down to condemn Japan. The blatant antagonism between the two powerhouses in Asia, lingering around more than sixty years after the end of the colonial period, is unmistakably more than interplay of their colonial history. It is an illumination of a largely unsettled post-colonial diplomacy that was executed in the name of economic advancement. The purpose of this paper is to shed lights on a largely ignored subject matter that unambiguously shaped the peculiar relationship between Korea and Japan.

• Journal of Engineering Education Research
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• v.24 no.2
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• pp.41-50
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• 2021

This study was conducted with the aim of exploring ways to more effectively manage related courses by checking the educational effects of the operation of engineering liberal arts courses operated for the development of communication skills of engineering students by detailed factors of communication skills. To achieve the purpose of the study, literature review and survey methodologies were used. A survey was conducted before and after class targeting four class students of the engineering college of D University in Gyeonggi-do. As a result of comparing the results of the pre-test before class through this class and the results of the post-test conducted at the end of the class, it was confirmed that speaking ability, reading ability, and communication ability were improved at a statistically significant level. In addition, as a result of analyzing differences in communication competencies for each individual variable, it was found that there were statistically significant differences according to gender, students' major field, and grade. Based on such research results, several educational proposals were presented to increase the effectiveness of the management of courses operated to develop communication skills.

• Journal of Service Research and Studies
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• v.7 no.3
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• pp.21-36
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• 2017

Recently in information business, managing and auditing are getting more difficult because of enlargement, intellectualization and convergence. In addition, ordering organizations have been having a difficult time choosing a service because not only there is a huge overlap between information audit system and PMO but also the work boundaries of those two are not clear enough. As the demand that a business managing and auditing frame work need to be more developed in terms of independence, quality, economic feasibility and responsibility has been increased, the Korea Association Of Information Systems Audit has been attempting to improve business management and audit system by proposing Unified Project Management Framework whose process is approximately constructed. This study introduces Unified Project Management Framework which is all-encompassing from the ordering at the very beginning of business to the operating in the post-processing step and then verifies its work scope through a comparative analysis with existing management systems. Also, this thesis examines the necessity of unification of audit system and PMO by analysing existing similar systems. At the end, this study, analyses the suitability of Unified Project Management Framework by evaluating it with IT goal frame of COBIT5 which is constructed based on BSC performance management index. The result of the analysis is expected to help people in charge understanding the features of Unified Project Management Framework before they apply it to practical business.

• Journal of the Korean Operations Research and Management Science Society
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• v.40 no.2
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• pp.1-17
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• 2015

In this paper, we propose a portfolio selection model utilizing a Markov chain for investing in the foreign exchange market based on market forecasts and exchange rate movement predictions. The proposed model is utilized to compute optimum investment portfolio weights for investing in margin-based markets such as the FX margin market. We further present an objective investment algorithm for applying the proposed model in real-life investments. Empirical performance of the proposed model and investment algorithm is evaluated by conducting an experiment in the FX market consisting of the 7 most traded currency pairs, for a period of 9 years, from the beginning of 2005 to the end of 2013. We compare performance with 1) the Dollar Index, 2) a 1/N Portfolio that invests the equal amount in the N target assets, and 3) the Barclay BTOP FX Index. Performance is compared in terms of cumulated returns and Sharpe ratios. The results suggest that the proposed model outperforms all benchmarks during the period of our experiment, for both performance measures. Even when compared in terms of pre- and post-financial crisis, the proposed model outperformed all other benchmarks, showing that the model based on objective data and mathematical optimization achieves superior performance empirically.

• Journal of Digital Convergence
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• v.18 no.7
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• pp.101-110
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• 2020

Devices that add emotion-specific services or various functions are appearing in AI speakers and related devices. To this end, this study performed topic modeling analysis on the topics of post-purchase texts written by AI speaker users, and compared them with the data collected via survey questionnaires. Furthermore, data on the emotional intelligence of AI speakers and relationship quality were collected from 600 users and analyzed using structural equation modeling. The findings of the study are as follows: First, the analysis results of topic modeling showed that most of the articles mainly mention the functional aspects of AI speakers. Second, emotional intelligence of AI speaker perceived by consumer affected relationship quality, and relationship quality had a positive effect on customer satisfaction. Therefore, this study expands the area of AI research by integrating the concept of emotional intelligence and relationship quality to provide new theoretical and practical implications.

• Journal of Korean Society for Quality Management
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• v.50 no.3
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• pp.517-532
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• 2022

Purpose: The purpose of this study is to propose useful suggestions by analyzing causal effect relationship between perceived usefulness (PU), perceived ease-of-use (PEOU), symbolic adoption (SA) which have four constructs, and ATCIS-II usage in mandatory context. Methods: Based on prior research, a research model was constructed using the variables of Technology Acceptance Model (TAM), the symbolic adoption theory, and the post-adoptive behavior variables. A structured questionnaire was conducted for those who use ATCIS-II in Republic of Korea Army (ROKA), and a total of 183 usable responses were collected and empirically analyzed using SmartPLS 3.3.9. Results: The results of this study are as follows; PEOU have a significant effect on PU and two constructs of SA (heightened enthusiasm, effort worthiness). PU have a significant effect on every construct of SA (heightened enthusiasm, mental acceptance, effort worthiness, use commitment). In addition, it was found that heightened enthusiasm have a significant effect on both expanded usage and exploratory usage. Also, mental acceptance and use commitment have a significant effect on exploratory usage. Conclusion: The findings of this empirical study have implications for proposing SA can explain mandated user's behavior and giving possible way that improve organization performance which adopt Information System (IS) by motivating end-user to extend IS's feature and explore new ways of using IS at work.